[python] Pass in the full context to open_experiment in pytorch loaders

[ebezzi]

Necessary to train pytorch loaders on a private bucket.

[github-actions[bot]]

This PR has not seen any activity in the past 4 weeks; if no one comments or reviews it in the next 3 days, this PR will be closed.

[prathapsridharan]

@ebezzi - Is this still needed?

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.12%. Comparing base (36d98e8) to head (6ec4496). Report is 65 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1108 +/- ## ========================================== - Coverage 91.12% 91.12% -0.01% ========================================== Files 77 77 Lines 5892 5891 -1 ========================================== - Hits 5369 5368 -1 Misses 523 523 ``` | [Flag](https://app.codecov.io/gh/chanzuckerberg/cellxgene-census/pull/1108/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=chanzuckerberg) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/chanzuckerberg/cellxgene-census/pull/1108/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=chanzuckerberg) | `91.12% <100.00%> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=chanzuckerberg#carryforward-flags-in-the-pull-request-comment) to find out more.

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[github-actions[bot]]

This PR has not seen any activity in the past 4 weeks; if no one comments or reviews it in the next 3 days, this PR will be closed.

[github-actions[bot]]

This PR was closed because it has been inactive for 31 days, 3 days since being marked as stale. Please re-open if you still need this to be addressed.